12m DD6129S01F/S02F Front Engine Transit Bus

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We design the 12m front engine transit bus with the models of DD6129S01F and DD6129S02F by exploiting the three-dimensional software and CAE to conduct the analysis on the computer.

At the same time of fully ensuring the strength of the frame, we realize the light weight of the vehicle. Through rationally matching the vehicle dynamic parameters, and optimizing the structure of the engine, transmission and accessory, the intake and exhaust resistance is reduced, and the cooling system performance is improved. Thus, the 12m front engine transit bus can be guaranteed with high economy. In addition, the frame of the vehicle is processed with cathode electrophoresis, greatly improving the anticorrosive property of the vehicle.

12m DD6129S01F/S02F Front Engine Transit Bus

Technical Specification and Configuration

Model		DD6129S01F	DD6129S02F
Engine	Model	NQ190N(CNG)	XL6SK-3(CNG)
	Type	Inline Four-stroke Liquid Cooled Direct Injection Electronically Controlled Natural Gas Engine
	Displacement (L)	5.638	7.127
	Max. Torque (N.m /r/min)	600 / 1200-1600	600 / 1400
	Max. Output Power (kW / r/min)	144 / 2600	113/2800
	Gas Cylinder (L)	80×7
Chassis	Gearbox	Mechanical Transmission
	Rear Axle	Stamping and Welding Integral Type
	Suspension System	Leaf Spring Suspension
	Tyre	11.00-20 / 12 R22.5
	Steering System	Power Steering
	Service Brake	Dual Circuit Air Brake
	Parking Brake	Energy Storage Spring, Air Cut-off Brake Acting on the Rear Wheel
	Retarder	Mounted on the Rear Axle (It is the necessary part when the vehicle is equipped with the diagonal tyre.)
Dimension (mm)	Overall Length	11980
	Overall Width	2550
	Overall Height	3210 (3360 with Air Conditioner)
	Wheelbase	6000
	Tread (Front / Rear)	2090 /18 60
	Approach Angle / Departure Angle (°)	7/7
	Min. Ground Clearance (mm)	240
	Body Inner Height (mm)	2160 (2050)
	Height of First Step from the Ground	350 (Front)/ 365 (Rear)
Main Body Configuration	Door	Front Single-leaf and Rear Double-leaf Pneumatic inward Swinging Doors
	Window	Hyperboloid Laminated Front Windshield, Rear Windshield, and the Side Window of the Upper and Lower Part Bonding and Middle Part Aluminum Alloy Sliding Type with Tempered Glass (Optional with Hermetic Bonding Window or Built-in Sliding Window)
	Air Conditioning System	Optional
	Heating System	Optional
	Service Facilities	Optional with Audio-visual Apparatus, Audio, Electronic Clock, Remote Keyless Entry, Curtain, Tyre Cover, etc.
Weight (kg)	Max. Manufacturer’s Total Mass	18000
	Seating Capacity	(25-47) 1
	Seating Arrangement Mode	3 1or 2 2
Performance	Max. Speed (km/h)	≥70
	Max. Gradeability (%)	≥ 20
	Min. Turning Diameter (m)	≤ 24

Related Names
Limousine Bus | Power Engine Bus | Large Passenger Transport Bus

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